How Machinists Create a High-Tolerance Connecting Rod from Billet Steel | Toolroom Mastery The incredible process of crafting a high-tolerance connecting rod from solid billet steel using expert toolroom machining. This video shows every precision step on the lathe — from raw metal to a fully engineered engine component. Unbelievable craftsmanship, extreme accuracy, and real toolroom mastery! #BilletSteel #ConnectingRod #MachiningProcess #LatheMachineWork #ToolroomMastery #MachineShop @lathemachinee @Restoration @CNCMaster00